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    • 34. 发明授权
    • Silicone-based pressure-sensitive adhesives having high solids content
    • 具有高固体含量的硅酮类压敏粘合剂
    • US5169727A
    • 1992-12-08
    • US505772
    • 1990-04-05
    • Larry D. Boardman
    • Larry D. Boardman
    • C09J183/04
    • C09J183/04Y10T428/31663
    • Pressure-sensitive adhesive composition comprising (a) a benzene soluble, resinous copolymer, (b) a diorganoalkenylsiloxy endblocked polydiorganosiloxane, (c) a diorganohydrogensiloxy endblocked polydiorganosiloxane, (d) an organosiloxane crosslinking agent containing more than two groups that will react with a silicon-bonded hydrogen of a diorganohydrogensiloxy endblocked polydiorganosiloxane by means of a hydrosilation reaction, said organosilicon compound being selected from organosiloxanes having 1 to 15 silicon atoms, and (e) a hydrosilation catalyst in an amount sufficient to effect curing of the composition. The major advantage of the present invention is that solvent need not be used to apply the composition. This non-use of solvent results in savings of material, time, and energy, and reduction in health and safety hazards.
    • 压敏粘合剂组合物,其包含(a)苯可溶性树脂共聚物,(b)二有机链烯基甲硅烷氧基封端的聚二有机硅氧烷,(c)二有机氢甲硅烷氧基封端的聚二有机硅氧烷,(d)含有两个以上将与硅反应的基团的有机硅氧烷交联剂 所述有机硅化合物选自具有1至15个硅原子的有机硅氧烷,和(e)足以实现所述组合物固化的量的氢化硅烷化催化剂,其中所述有机硅化合物选自具有1至15个硅原子的有机硅氧烷,和(e)硅氢化硅烷氧基封端的聚二有机硅氧烷。 本发明的主要优点是不需要使用溶剂来施用组合物。 这种不使用溶剂可以节省材料,时间和能量,减少健康和安全危害。
    • 38. 发明授权
    • Polymerizable compositions containing olefin metathesis catalysts and
cocatalysts, and methods of use therefor
    • 含有烯烃复分解催化剂和助催化剂的可聚合组合物及其使用方法
    • US5198511A
    • 1993-03-30
    • US811785
    • 1991-12-20
    • Katherine A. Brown-WensleyMichael C. PalazzottoWilliam M. LamannaLarry D. BoardmanJohn E. GozumFred B. McCormick
    • Katherine A. Brown-WensleyMichael C. PalazzottoWilliam M. LamannaLarry D. BoardmanJohn E. GozumFred B. McCormick
    • C08F4/06C08F4/42C08F4/80C08G61/06C08G61/08C08L61/08
    • C08G61/08Y10S526/943
    • Polymerization of ring-strained cyclic olefins takes place in the presence of a one-part or two-part catalyst which is air and moisture stable and which comprises a transition metal-containing compound.The one-part transition metal-containing catalyst is selected from the group consisting of(a) compounds of the formula(L.sup.1) (L.sup.2)Q whereinQ represents Mo or W;L.sup.1 represents one to six CO (carbonyl) ligands;L.sup.2 represents none to 5 ligands, each of which is a non-ionic compound or unit of a polymer which can be the same or different, each contributes two, four, or six electrons to the metal and is different from L.sup.1 ;wherein the sum of the valence electrons of Q and the electrons contributed by the ligands L.sup.1 and L.sup.2 is 18,(b) at least one of cationic ruthenium and osmium-containing organometallic salts having at least one polyene ligand, and(c) [Ir(RO.sub.2 CHC=CHCO.sub.2 R).sub.2 Cl].sub.2 wherein each R independently is hydrogen or lower alkyl (C.sub.1 to C.sub.4), provided that the oxidation state of the metal is in the range of +3 to 0, and that cocatalysts containing C-halogen bonds are not present.The two-part catalyst comprises(a) a transition metal-containing catalyst, provided that the oxidation state of the transition metal is in the range of +3 to 0, and(b) a cocatalyst selected from the group consisting of(i) terminal or silyl alkynes,(ii) organosilanes containing at least ##STR1## (iii) oxidative salts or oxidative compounds containing an oxygen atom to non-oxygen atom double bond, and(iv) heteroatom-containing alkenes.The polymerized composition is useful to provide molded articles, elastomers, dielectric supports, ionophoric or biologically active materials, composite materials, and the like.
    • 环应变环烯烃的聚合在空气和水分稳定的含有过渡金属的化合物的一部分或两部分催化剂存在下进行。 一部分过渡金属的催化剂选自(a)式(L1)(L2)Q化合物,其中Q表示Mo或W; L1代表一至六个CO(羰基)配体; L2代表无5个配体,它们各自是可以相同或不同的非离子化合物或聚合物单元,每个赋予金属二,四或六个电子,并且不同于L1; 其中Q和由配体L1和L2贡献的电子的价数之和为18,(b)至少一种具有至少一个多烯配体的阳离子钌和含锇的有机金属盐,和(c)[Ir (RO2CHC = CHCO2R)2Cl] 2,其中每个R独立地为氢或低级烷基(C1-C4),条件是金属的氧化态在+3至0的范围内,并且含有C-卤键的助催化剂为 不存在。 两部分催化剂包含(a)含过渡金属的催化剂,条件是过渡金属的氧化态在+3至0的范围内,和(b)选自(i)的助催化剂, (ii)至少含有(iii)氧化盐或含有氧原子的氧化化合物与非氧原子双键的有机硅烷,(iv)含杂原子的烯烃的有机硅烷。 聚合的组合物可用于提供模塑制品,弹性体,电介质载体,离子或生物活性材料,复合材料等。